Apparatus for extracting tar from gas.



No. 699,563. Patented may 6, I902. P. PLANTINGA. APPARATUS FOR EXTRACTING TAR FROM GAS. (Application filed Aug, 13, 1901.) (mi Model.) 2 Sheets-Sheet I V/ T/VESSES: y t 4 fiXZQ M WM Atmw we uowms PETERS cu PHOTO-\JTHQ, WASNINGTQN. u, c.

UNITED STATES PATENT OFFICE.

PIERRE PLANTINGA O F FORT W'AYNE', INDIANA.

APPARATUS FOR EXTRACTING TAR FROMQGAS.

sPEciFrcATroN forming part of Letters Eatent No. 699,563, dated May 6, 1902. Application filed August 13. 1901. Serial No. 71,911. (No model.)

To (0Z5 whom, it may GOROGWM' Be it known'that I, PIERRE PLANTINGA, a subject of the Queen of the Netherlands, residing at Fort WVayne, in the county of Allen and State of Indiana, have invented certain.

contained gas and hydrocarbon illuminants,

while the tar is arrested.

The object of the invention is to provide a greatly-increased area of injecting-perforations and a greatly-increased extent of impact-surface for arresting tar by means of compound concentric drums in concentric tar cups or chambers in a single shell or casing; also, to provide for more effectively drawing off tar and preventingaccumulation of heavy pitch in the bottoms of the tar seal-cups in which the regulator-drums work.

My apparatus is very compact, and the @0111- pound drums being placed in a single shell or case are much more effective and have a much greater capacity for a given cost than the tarextracting apparatus of this class heretofore made.

The matter constituting my invention will be defined in the claims.

The details of construction of my improved apparatus are illustrated in the accompanying drawings, in which- Figure 1 represents a vertical section of the tar-extracting apparatus. Fig. 2 represents, on enlarged scale, a horizontal section through the shell, concentric cups, and perforated tar extracting drums. Fig. 3 represents an inner face View of a portion of a frame, with per forated plates of the drum. Fig. 4 represents a vertical section through the perforated plates in one section or frame of the drum. Fig. 5 represents a horizontal section, on enlarged scale, through the perforated plates in one section or frame of the drum.

Heretofore the tar-extracting apparatus of I the Pelouze and Audouin type has been made with a single regulating-drum, having perforated cylinders or plates for -causing small streams of gas to be impinged against impactsurfaces for rupturing the tar globules, liberating the volatile illuminants, and arresting the tar. Such construction has proved inadequate and was not economical for apparatus of large capacity. .By providing two concentric tar-cups and gas-passages I am enabled to use three concentric drums having perforated plates, thus greatly increasing the area of perforations and of impact-surregulating-drunnan'd the sealing-tube F. The

sections B and C are bolted together at their flanges b and c, and the other parts are secured together by bolts or rivets in a Wellknown manner. The base Bis provided with a gas-inlet b and a hand-hole b, which is closed by a tight-fitting-cover. The section B is preferably cast with the cylindrical concentric walls D D D, rising above the gasinlet chamber and forming the gas-passages d (1, open atthe top and bottom, and the annular tar-cups a a, with bottom plates D The annular cups a a have bottom openings d and 61', leading into the tar-outlet pocket d extending to the outer wall of the section, where the overflow-trap is connected. The outlet d is made with an inclined bottom, so that all heavy matter may freely fiow off to the trap, and it is preferably castwith the walls of the cups and the outer wall, thus serving to connect and strengthen the parts. Other strengthening-webs (not here shown) will connect the cups a and a, and may be ICO and bottom D as being cast integral with the base 13, my invention is not confined'thereto, and the parts may be built upand riveted or bolted together within the scope of my invention.

The section of the shell is provided with the gas-outlets and the hand-openingc", having a tight-fitting cover, and is closed at the top by the seal-tube F and the cap F.

The compound regulating and tar-extracting drum is composed oftwo-outer concentric walls E E having ahead 6' and adapted to dip into the annular tar-cups aa. In addition to the compound drum I can provide the usual central drum E, having a head 6, around the central inlet d.- The heads 6 and e are connected and heldin the proper relative position by the spider e, which has a central boss, to which is connected the guideframe.

rod 2. The drums are made of polygonal shape, as shown in Fig. 2, being built up of sections or frames containing fiat perforated plates and of connecting corner-posts for facilitating construction and repair of the parts. Each drum or wall of a drum is constructed of angular corner-posts K and sections or frames 70, containing flat perforated plates, as shown in Figs. 2, 3, and 5. Each frame 74; is constructed of end bars on and side bars m, and two plates, as l and 2 or 3 and l,

are secured to opposite sides of the bars or Two of such frames are secured to the opposite sides of the corner-posts K, as

shown in Fig. 5. Each injecting-plate, as l or 3, is made with vertical rows of injectingperforations n and intermediate blank surfaces n'. Each of theimpact-plates, as 2.01 4, is made with vertical blank impact-surfaces 0 and intermediate rows of large slots or openings 19 for the free escape of gas. The plates are so assembled in the frames that the injecting-perforations are opposite the blank impact-surfaces. The space 00 between two framesthat is, between plates 2 and 3-is greater than that between plates 1 and 2 in one frame for allowing the gas to gather proper force or pressure to be injected through the perforations in plate 3 and impinged with proper force against the blank impact-su rface of plate 4.

I do not broadly claim herein as my invention the polygonal drum constructed of frames or sections of flat perforated plates and conneoting-posts.

The sealing-tube F is provided near its lower end with a flange f, by means of which it is secured to the cap F, and has below the cap an extension f, in the lower end of which is secured the guide-tube f for rod 6. The

sealing-tube h, having a cap H, incloses tube f. An eyebolt h, having a screw-threaded stem, passes through the cap H and connects with rod 6", so as to couple it to the cap. To a lateral lug f at the top of tubefis secured a post g, at the upper end of which is journaled the pulley G. A chain or rope g, connecting with eyebolt h, passes over pulley G andconnects with .a short rodg, which is seen red to the counterweight J,which has at its lower end a depending guide-rodj, extending down into a guide-tube I, fixed to the cap F- r In order to prevent the accumulation of heavy tar in the bottom of the seal-cups, I provide the bottom openings d 61 into the drain-pocket d below the cups and cast to the shell or outer wall of the apparatus,which has an opening for the discharge of tar. An overflow-trap L connects at this opening with the shell. The trap L-has a vertical central partition Z rising from its bottom to near its top and to the height at-whiehit is desired to maintain the tar-level in the seal-cups a a. An outlet tar-pipe Z connects with the lower end of the trap and rises to about the height thereof, where a branch connects, which in practice will lead to a seal-pot. (Not here shown.) An equalizing gas-pipe Z connects with the top of trap L and will in practice connect with the main gas-inlet pipe 1; for equalizing the gas-pressure on the tar in the trap and on that in the seal-cups. Drainpipes 1 connect with the bottom of the two compartments of the trap.

The counterbalanced drum E and the compound drum composed of inner and outer concentric walls E E act as regulators for effectively treating variable volumes of gas to extract the tar therefrom. If an increased volume of gas is being generated and passed into the apparatus, it will exert an increased pressure on the drums, causing them to rise farther out of the sealing liquid in the cups and expose an increased area of perforations for passage of the gas. \Vhen the volume of the gas decreases, resulting in decreased pressure, the drums will descend deeper into the sealing liquid, thereby decreasing the area of exposed perforations in the walls of the dru ms. The pressure of gas therefore remains substantially the same in the drums, and consequently will be forced or injected in small streams under uniform pressure through the perforations and caused to impinge against the impact-surfaces in such manner as to offectively rupture the tar globules, liberate Volatile illuminants, and arrest the tar.

In practice a sealing liquid is placed in the seal-tube F for sealing the tube h, which moves up and down therein, thereby preventing the escape of gas. I

Having described my invention, what I claim, and desire to secure by Letters Patent, 1 i's- 1. In apparatus for extracting tar from gas, the combination with a seal-cup having vertical gas-inlet passages,of two or more counterterbalanced regulating and tar extracting drums, connected one within the other, and

' having walls composed of injecting and impact plates in said cup, one of said gas-inlet passages opening into each drum, substantially as described.

2. In apparatus for extracting tar from gas,

a series of drums having concentric walls, each wall being composed of injecting and impact plates, in combination with an annular gas-supply channel and annular seal-cups, substantially as described.

3. In a tar-extracting apparatus, the central and annular gas-inlet passages and annular tar-cups, in combination with the compound drum having concentric walls, composed of injecting and impact plates, and a drum for the central gas-inlet, substantially as described.

4. In apparatus for extracting tar from gas, the seal and regulating chamber constructed, with annular walls, and annular bottom plates, forming gas-passages, as d and d open at top and bottom, and annular seal-cups, closed at the bottom and open at the top, in

combination with the regulating and tar-extracting drums closed at the top, and having three concentric perforated walls in said cups, substantially as described.

5. In apparatus for extracting tar from gas the combination with the outer case, o f-the annular seal-cups, each having abottom opening, a tar-pocket (1 extending below and connecting said cups with the outer wall of the chamber, and an overflow-trap connecting with the wall at the opening of said pocket, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

PIERRE PLANTIN GA.

WVitnesses:

SAM T. STRINGER, JOHN P. LENNARK. 

